[INFO] fetching crate substrate-wasmtime-profiling 0.16.0-threadsafe.4...
[INFO] documenting substrate-wasmtime-profiling-0.16.0-threadsafe.4 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate substrate-wasmtime-profiling 0.16.0-threadsafe.4 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate substrate-wasmtime-profiling 0.16.0-threadsafe.4 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate substrate-wasmtime-profiling 0.16.0-threadsafe.4
[INFO] finished tweaking crates.io crate substrate-wasmtime-profiling 0.16.0-threadsafe.4
[INFO] tweaked toml for crates.io crate substrate-wasmtime-profiling 0.16.0-threadsafe.4 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded object v0.18.0
[INFO] [stderr]   Downloaded ittapi-rs v0.1.5
[INFO] [stderr]   Downloaded substrate-wasmtime-runtime v0.16.0-threadsafe.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f2c3ed3ff82ab9747d0b4ad0a64cfae568fbf98171039cec9d43bff5fd703bf6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f2c3ed3ff82ab9747d0b4ad0a64cfae568fbf98171039cec9d43bff5fd703bf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2c3ed3ff82ab9747d0b4ad0a64cfae568fbf98171039cec9d43bff5fd703bf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2c3ed3ff82ab9747d0b4ad0a64cfae568fbf98171039cec9d43bff5fd703bf6", kill_on_drop: false }`
[INFO] [stdout] f2c3ed3ff82ab9747d0b4ad0a64cfae568fbf98171039cec9d43bff5fd703bf6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81725162b71bbb81635d155f01941b929ff89d4164011f3e129260e54a6d7a60
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "81725162b71bbb81635d155f01941b929ff89d4164011f3e129260e54a6d7a60", kill_on_drop: false }`
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.63.0
[INFO] [stderr]    Compiling wasmtime-environ v0.16.0
[INFO] [stderr]     Checking more-asserts v0.2.1
[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]     Checking gimli v0.20.0
[INFO] [stderr]     Checking regalloc v0.0.21
[INFO] [stderr]    Compiling substrate-wasmtime-runtime v0.16.0-threadsafe.4
[INFO] [stderr]     Checking zstd-sys v1.4.17+zstd.1.4.5
[INFO] [stderr]     Checking file-per-thread-logger v0.1.4
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking cranelift-entity v0.63.0
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking zstd-safe v2.0.5+zstd.1.4.5
[INFO] [stderr]     Checking zstd v0.5.3+zstd.1.4.5
[INFO] [stderr]     Checking cranelift-bforest v0.63.0
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.63.0
[INFO] [stderr]    Compiling cranelift-codegen v0.63.0
[INFO] [stderr]     Checking cranelift-frontend v0.63.0
[INFO] [stderr]     Checking cranelift-wasm v0.63.0
[INFO] [stderr]  Documenting substrate-wasmtime-profiling v0.16.0-threadsafe.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 13s
[INFO] running `Command { std: "docker" "inspect" "81725162b71bbb81635d155f01941b929ff89d4164011f3e129260e54a6d7a60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81725162b71bbb81635d155f01941b929ff89d4164011f3e129260e54a6d7a60", kill_on_drop: false }`
[INFO] [stdout] 81725162b71bbb81635d155f01941b929ff89d4164011f3e129260e54a6d7a60